You did good on your choice, it will serve you well.
And with a few parts you can change your hunting
gun into a first class HD shotgun.
I have an 870 Express Turkey that I'm going to send
to that J.D. fellow at www.aiptactical.com
him do his magic on and turn it into a good tactical
gun that I can also use for turkeys.
Do check his sight out. There are tons of 870 info.
there and he also has just about anything you may
want for your 870, plus he knows 870's. Good luck.